#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Author  : config_spider
import scrapy
from urllib.parse import unquote

from parsel import Selector
from apps.tax_policy.tax_policy.items import NetTaxPolicyItem as Item, base64
from apps.tax_policy.tax_policy.spiders.base_spider.base_tax_policy_spider import BaseTaxPolicySpider


class YunnanYnskxjstE7bcPolicy(BaseTaxPolicySpider):
    name = 'yunnan_ynskxjst_e7bc_policy'

    source = '云南省科学技术厅'
    province = '云南省'
    city = ''
    county = ''
    park = ''

    def start_requests(self):
        url = 'https://kjt.yn.gov.cn/html/zhengfuxinxigongkai/zhengcewenjian/qitawenjian/'
        yield scrapy.Request(url, callback=self.parse_list)

    def parse_list(self, response, **kwargs):
        prev_item = response.meta.get('item')

        for elem in response.xpath(
                "//li//span//a[contains(@href, 'htm') or @title]/ancestor::span[string-length(string(.))>=5]"):
            item = Item()
            item['source_url'] = elem.xpath(""".//a/@href""").re_first(r"""(.*/.*)""")
            item['source_url'] = response.urljoin(item['source_url'])
            item['publish_date'] = elem.xpath("""string(.)""").get()
            if prev_item is not None:
                for key, value in prev_item.items():
                    item[key] = value
            if not item['source_url']:
                continue
            if '.htm' not in item['source_url'] and '.shtm' not in item['source_url'] and '.jhtm' not in item['source_url']:
                continue
            # print(item['source_url'])
            yield response.follow(item['source_url'], callback=self.parse_detail, meta={'item': item})
        if response.meta.get("is_next") is not False:
            text = response.xpath("""//*[@id='pages']/text()""").get()
            html = Selector(text=unquote(base64.b64decode(text).decode('utf-8').replace('+', ' ')))
            total_page = html.xpath('//a[not(@class)]/text()').getall()[-1]
            print(total_page)
            for page_num in range(2, int(int(total_page) / 1 + 1)):
                yield response.follow(response.url + f"/{page_num}.html",
                                      callback=self.parse_list, meta={'item': prev_item, 'is_next': False})

    def parse_detail(self, response, **kwargs):
        item = Item() if response.meta.get('item') is None else response.meta.get('item')
        item['title'] = response.xpath("""string(//meta[@name='ArticleTitle']/@content)""").get()
        item['publish_date'] = response.xpath("""string(//meta[@name='PubDate']/@content)""").get() or response.xpath("""string(//meta[@name='pubdate']/@content)""").get()
        item['content'] = response.xpath(""".""").get()
        item['source'] = self.source
        item['province'] = self.province
        item['city'] = self.city
        item['county'] = self.county
        item['park'] = self.park
        yield item


if __name__ == "__main__":
    from scrapy import cmdline

    cmdline.execute("scrapy crawl yunnan_ynskxjst_e7bc_policy".split())
